Obama set to meet with Tsvangirai today
                                
                                
                                    (Newser) -
                                    With Zimbabwe’s prime minister visiting President Obama today, the key question is how the West can help Morgan Tsvangirai without boosting Robert Mugabe. Under the government's power-sharing agreement, the president retains control of the police, justice system, spy service, and media, writes Celia Dugger in the New York Times....